Western Australia's ruling Labor party is tipped to have a comfortable win in the March 8 poll but its massive majority is likely to shrink as the conservatives claim back seats lost in the last two elections.
The political parties have been making big spending promises ahead of official campaigning kicking off on Tuesday.
"Nobody's holding back," political analyst John Phillimore told AAP.
"Fiscal rectitude is not a political virtue at the moment."
A series of massive state budget surpluses have made the splurge possible, with the state treasury predicting a $3.1 billion surplus for 2024-25.
The Liberals, the Nationals, the Greens and Labor made more than $15 billion in promises before parliament was dissolved, according to WA Today's promise tracker.
Liberal leader Libby Mettam has focused on health care on the first day of the election campaign. (Richard Wainwright/AAP PHOTOS)
Cost of living and housing are the main issues for WA voters, and they along with health, education, regional services, state infrastructure and crime have been targeted by the parties.
Before he visited WA Governor John Dawson, Premier Roger Cook pledged another $745 million in funding for school infrastructure if re-elected.
The plan includes new schools, classroom refurbishments, play equipment, sports facilities and reverse cycle air-conditioning.
"Labor is not really holding back ... they have been making a promise pretty much every day over the last month," Professor Phillimore, the executive director of Curtin University's John Curtin Institute of Public Policy, said.
Liberal leader Libby Mettam was also out and about campaigning, with a pledge to boost in-home healthcare services by $24 million, including chemotherapy services.
"This is about the WA Liberals plan to put WA patients first and reduce the burden on our hospital system," she said.
The party also announced a further $16 million to upgrade a suburban stadium.
It followed $210 million a day earlier to bolster education services in the state.
Mr Cook continued his colourful warnings about the Liberal party, saying they were running an insipid campaign and they were chaotic and dysfunctional.
"WA might have the strongest economy in the nation, but we have the laziest liberals in the nation," he said.
"They've had eight years in opposition. What have they done to earn the vote of Western Australians?"
Ms Mettam rebuffed reporters' questions about alleged Liberal party instability and its chances in various seats, saying her focus was on "a better future for Western Australians".
Our priorities are fixing the mess created under Labor's watch," she said.
Roger Cook and Libby Mettam met with WA Governor Chris Dawson (c) to kick off the election campaign. (Abc Pool/AAP PHOTOS)
"It's about fixing our hospital system. It's about more police on the beat and more homes for Western Australians, addressing cost of living pressures and supporting regional services."
The Liberal and National parties have an uneasy alliance in WA but they're campaigning separately.
Opposition leader Shane Love on Tuesday promised to restore maternity services to the regional town of Carnarvon if his party formed a government.
The government holds 53 seats in the lower house with the Liberals and Nationals holding three each after Labor's unprecedented landslide victory in 2021, under then-premier Mark McGowan, primarily due to the party's handling of the COVID-19 pandemic and its closed border policy.
Analysts predict the Liberal and National parties to regain previously held blue-ribbon seats but they're unlikely to secure enough to form a government.